The HP Officejet 150 Mobile All-in-One is a pretty complete all-in-one despite its compact size. In terms of features it's (almost) on the level of many other all-in-ones we've tested. That it doesn't have a duplex unit can be blamed on its size, but we couldn't shake the feeling that the Officejet 150 is still too large to be considered a true mobile printer. The performance of the HP Officejet 150 Mobile All-in-One is good, and the only real drawback is the lack of Wi-Fi.